We have a business account in our work, i think we have 1.4tb of storage? something silly anyway.
We use it to sync up files from our work PC’s to laptops, mobiles & tablets so we can work on the move & so we can share files with 3rd parties anytime.
Its has basically replaced our ftp because too many people were having difficulty using the ftp.
I would note we never keep sensitive documents on there though.
TBH its been great, no complaints, but I guess it depends what your using it for…